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SCOPE OF WORK <br /> Plannin and Permits <br /> Smith Technology has completed the soil boring permit application for the subsurface <br /> investigation The permit application and associated fees (check no 1161) are attached to this <br /> workplan Smith Technology will also schedule field personnel and equipment, locate <br /> underground utilities, and perform any other necessary field preparation and fob start-up activities <br /> Advancement of Soil Borings <br /> To determine the extent of residual soil contamination three soil borings will be advanced to <br /> approximately 30 feet below ground surface (bgs) Two of the borings will be placed inside the <br /> excavation area of the former tank and one of the borings will be placed in the estimated <br /> downgradient direction of groundwater flow Proposed boring locations are shown on Figure 2 <br /> Three borings will be advanced to^using truck mounted Geoprobe® narrow diameter, direct push <br /> technology Drilling will be conducted by a State-licensed (C57) drilling company A field <br /> geologist will be present to log all drill cuttings and soil samples Descriptions of soil types <br /> encountered and sample collection intervals will be recorded on boring logs Soil samples will be <br /> collected at five foot intervals, field screened with a PID, and up to two samples from each of the <br /> three borings will be submitted for laboratory analysis Following soil sample collection, the <br /> borings will be backfilled with neat cement grout to the surface All drill cuttings, if any, will be <br /> stored on-site in a 5-gallon bucket with a lid pending laboratory results <br /> Soil Sample„Analysis <br /> Selected soil samples will be immediately placed on ice and delivered under chain-of-custody <br /> documentation to a State-certified laboratory for analysis Samples will be analyzed for total <br /> petroleum hydrocarbons as diesel, gasoline, kerosene, and motor oil (TPHd, TPHg, TPHk, and <br /> TPHmo, EPA Method 8015 Modified), benzene, toluene, ethylbenzene, and xylenes (BTEX, EPA <br /> Method 8020), and methyl tertiary butyl ether (MTBE, EPA Method 8020) <br /> Report Preparation <br /> Upon completion of all field activities, a summary report will be prepared for submittal to <br /> PHSIEHD Smith Technology will prepare a report that will include a description of all field <br /> activities, laboratory analytical results, boring logs, and recommendations <br /> All work described in this workplan will be performed under the direction of a California <br /> Registered Professional Engineer A completed site safety plan (SSP) is contained in Attachment <br /> 1 and all field work will be completed in accordance with this plan <br /> w D77351reportslwkp dm 2 <br /> • <br /> Sh*H <br />